矿井安全预评价的变权欧式距离模型的建立及应用研究

Assessment approach to coalmine safety based on continental distance model with varying weight

基于加权欧式距离模型,提出安全贡献率的概念,即通过利用影响煤矿安全状况的各指标因子对煤矿安全的贡献来确定测量估算数据中各相应因子的权重系数;并对与矿井相关安全指标分级标准进行适当的量化处理,从而建立起具有对煤矿自然安全状况进行提前评估功能的预评价模型———变权欧式距离模型。最后,应用该模型对黄陵二号井的自然安全状况进行了综合评价,并将评价结果与未确知测度模型、集对分析模型的评价结果进行比较,与煤矿实际情况符合较好。

Based on the study of the defects that might be responsible for the evaluation loss in large amounts of original information because of using the Max-Min arithmetic operators or for failure to incarnate the influence differences in gene because of using the same weight to deal with all kinds of relations, the present authors intend to put forward a new assessment approach to the coalmine safety based on the continental distance model with varying weights. We have done the following studies in hope to find some new effective ways available in mining practice. Main study of ours can be summarized in three steps. Firstly, main facts of coalmines safety should be selected which could probably influence coalmines safety based on the reason- able analysis of actual situation of the coalmine. Secondly, evaluation genes＇ weight of every item, which might be relevant to coal mine safety was evaluated according to these genes＇ safety ratio, which will be analyzed in this paper below. This new idea can be used to analyze and show the influence differences among the safety gene you selected, avoiding using the same weight to which might not be fit. It is also necessary to analyze the disadvantage of losing original information. Thirdly, after evaluation gene＇s grade standards of the coalmine safety were treated properly, the continental distance model with varying weight, which will be capable to make an advance evaluation of the coalmines was established. When we tried to apply this model to Huangling No.2 Mine, we did compare the results of this model with which were got by both set pair analysis model and uncertain measure model. At the end of the paper the analytic conclusion was given, which were excellently consistent. The satisfying conclusion proves the method of coalmine safety based on the continental distance model with varying weight is scientific and practical and therefore suitable for practical analysis of the coal mining production.